Spain is famous for its weather, Benidorm, Spanish food, it's football team, Barcelona, and basically being a rather sunny place overall â none of these descriptions are incorrect, and in fact they are all entirely true!
As the temperature of the air increases its density decreases. Therefore the thrust produced by the engine decreases. As the air pressure increases, its density increases, causing thrust produced by the engine to increase. Altitude has a double effect on thrust. As the altitude increases, the air becomes colder and denser, up to the beginning of stratosphere. This causes the thrust to increase.
F =ÏA (3) where terms are as defined above, and. F = end thrust, lb. A = cross section area of pipe, in2. Equations 2 and 3 can also be used to determine the compressive stress and thrust (respectively) that is. created when a temperature increase occurs.